Also known as Auca Mahuevo basal
Where: Neuquen, Argentina (37.5° S, 69.0° W: paleocoordinates 40.1° S, 54.4° W)
• coordinate stated in text
When: Allen Formation (Malargüe Group), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)
• The fossil were collected from the basal seccion of the profile I/99-I/02 (Carignano and Garrido, 2006).
Environment/lithology: shallow subtidal; fine-grained, medium sandstone and gray, green, yellow mudstone
Size class: microfossils
• The recovered microfauna includes Protelphidium sp., Patellina, Quinqueloculina and Ammobaculites. There are also cypridoids (such such as Neuquenocypris) and cytheroideans.
Collected by Ana Carignano and Sara Ballent; reposited in the MLP
Collection methods: chemical,
Primary reference: A. P. Carignano and S. Ballent. 2009. Microfósiles (Foraminifera, Ostracoda) y su respuesta a las variaciones paleoambientales. Un ejemplo en la Formación Allen (Cretácico Superior), Cuenca Neuquina, Argentina. Ameghiniana 46(2):307-320 [E. Vlachos/F. Aspromonte]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 232090: authorized by Evangelos Vlachos, entered by Franco Aspromonte on 19.10.2023
Creative Commons license: CC BY (attribution)
Taxonomic list
| Nodosariata | |
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| Tubothalamea | |
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| Foraminifera | |
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| Globothalamea | |
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| Ostracoda | |
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Neuquenocypris sp. Musacchio 1973 ostracod | |
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Cytheroidea indet. Baird 1850 ostracod | |
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Paralimnocythere aucamahuevoensis n. sp.2 Carignano and Cusminsky 2015 ostracod Carapaces.MLP-MI 1880 (holotype).
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